64% (2018)

57% (2017)

72% (2003)

58% (2020)

49% (2000)

62% (2012)

60% (2000)

53% (1997)

70% (1993)

72% (1998)

72% (2001)

57% (2007)

65% (1981)

63% (1993)

54% (1998)

74% (1995)

70% (1985)

67% (2008)

69% (1993)

71% (2015)